dfhack/library/git-describe.cmake

52 lines
2.2 KiB
CMake

if(NOT EXISTS ${dfhack_SOURCE_DIR}/.git/index OR NOT EXISTS ${dfhack_SOURCE_DIR}/.git/modules/library/xml/index)
MESSAGE(FATAL_ERROR "Could not find git index file(s)")
endif()
set(git_describe_tmp_h ${dfhack_SOURCE_DIR}/library/include/git-describe.tmp.h)
set(git_describe_h ${dfhack_SOURCE_DIR}/library/include/git-describe.h)
if(EXISTS ${git_describe_tmp_h} AND
NOT(${dfhack_SOURCE_DIR}/.git/index IS_NEWER_THAN ${git_describe_tmp_h}) AND
NOT(${dfhack_SOURCE_DIR}/.git/modules/library/xml/index IS_NEWER_THAN ${git_describe_tmp_h}))
return()
endif()
execute_process(COMMAND ${GIT_EXECUTABLE} describe --tags --abbrev=8 --long
WORKING_DIRECTORY "${dfhack_SOURCE_DIR}"
OUTPUT_VARIABLE DFHACK_GIT_DESCRIPTION)
execute_process(COMMAND ${GIT_EXECUTABLE} rev-parse HEAD
WORKING_DIRECTORY "${dfhack_SOURCE_DIR}"
OUTPUT_VARIABLE DFHACK_GIT_COMMIT)
execute_process(COMMAND ${GIT_EXECUTABLE} describe --tags --abbrev=8 --exact-match
WORKING_DIRECTORY "${dfhack_SOURCE_DIR}"
RESULT_VARIABLE DFHACK_GIT_TAGGED_RESULT
OUTPUT_QUIET ERROR_QUIET)
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# Check library/xml for matching commits
execute_process(COMMAND ${GIT_EXECUTABLE} rev-parse HEAD:library/xml
WORKING_DIRECTORY "${dfhack_SOURCE_DIR}"
OUTPUT_VARIABLE DFHACK_GIT_XML_EXPECTED_COMMIT)
execute_process(COMMAND ${GIT_EXECUTABLE} rev-parse HEAD
WORKING_DIRECTORY "${dfhack_SOURCE_DIR}/library/xml"
OUTPUT_VARIABLE DFHACK_GIT_XML_COMMIT)
file(WRITE ${git_describe_tmp_h} "")
macro(git_describe_definition var)
string(STRIP "${${var}}" GIT_DEF_VALUE)
file(APPEND ${git_describe_tmp_h} "#define ${var} \"${GIT_DEF_VALUE}\"\n")
endmacro()
git_describe_definition(DFHACK_GIT_DESCRIPTION)
git_describe_definition(DFHACK_GIT_COMMIT)
git_describe_definition(DFHACK_GIT_XML_EXPECTED_COMMIT)
git_describe_definition(DFHACK_GIT_XML_COMMIT)
if(${DFHACK_GIT_TAGGED_RESULT} EQUAL 0)
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file(APPEND ${git_describe_tmp_h} "#define DFHACK_GIT_TAGGED\n")
endif()
if(${DFHACK_GIT_XML_COMMIT} STREQUAL ${DFHACK_GIT_XML_EXPECTED_COMMIT})
file(APPEND ${git_describe_tmp_h} "#define DFHACK_GIT_XML_MATCH\n")
endif()
execute_process(COMMAND ${CMAKE_COMMAND} -E copy_if_different
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${git_describe_tmp_h} ${git_describe_h})